A Miniature Salinity Measurement System using Temperature and Conductivity Sensor Systems for Ocean Monitoring

A miniature high precision conductivity and temperature (CT) sensor system has t dev be developed for ocean salinity monitoring. The CT sensor can be manufactured using micro fabrication technology. A novel seven-electrode conductivity cell can be developed which has no field leakage. This is combined with a platinum resistor temperature bridge to produce an integrated CT sensor. A generic impedance measurement circuit has been developed, with three-parameter sine fitting algorithm. It has a Bluetooth transmitter. The system for user interface will have the receiver and the labVIEW support for further processes.